Lubricator.



C. H. CROCKETT.

LUBR|CATOR.

APPLICATION Fl-LED Aue.29. 1913.

1,156,133, Patented 00u12, 1915.

CHARLES H. CROCKETT, 0E DETROIT, MICHIGAN, ASSIG-NOR TO DETROIT LUBRICATOR COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

LUBRICATOR.

Specification of Letters Patent.

Patented oet. i2, 1915.

Application led August 29, 1913. Serial No. 787,373.

tain new and useful Improvements in Lubricators, of which the following is a specilication, reference being had therein to the accompanying drawings.

rihe invention relates to lubricators designed for use where subjected to a pulsating pressure, and it is the object of the invention to provide a sight feed for the lubricant which will avoid splashing or atomizing of the latter, due to the pulsating pressure or suction.

To this end the invention consists in the construction as hereinafter set forth.

In the drawings,-Figure l is a longitudinal section through a lubricator to which my improvements are applied; Fig. 2 is an enlarged side elevation of the lubricant feed nozzle; Fig. 3 is a cross-section on the line m-m of Fig. 2; Fig. 4 is an illustration similar to Fig. 2 showing a modified construction; and Fig. 5 is a similar view showing another modification.

A is the cup or container for the lubricant, B the discharge passage therefor, C a regulating valve and D the'sight feed casing of the lubricator, of any suitable construction. It is usual to deliver the lubricant centrally within the sight feed chamber by a nozzle having a fine passage therein. This, when the lubricant is subjected to uniform pressure, will deliver a steady stream or drop, but under sudden fluctuations in pressure the lubricant within the nozzle will be driven out therefrom and commingled with the steam or gas, the expansion of which will cause a splashing on the sides of the glass. This will interfere with the visual indication and therefore, it is objectionable. With my improved construction I have avoided such a result by a peculiar construction of discharge nozzle adapted to guide the stream or drop to the center of the sight feed casing, without permitting the disruptive effect under fluctuating pressures, as above described. With the cons truction shown in Figs. 1 to 3, I employ a nozzle E arranged centrally within the sight feed casing, having a passage F through the axis thereof andv laterally-extending slots G upon opposite sides thereof.

The nozzle is of tapering form so that at the lower end the slots merge into the axial passage. With this construction I have found that all difficulty from pulsating pressures is avoided, and as I understand it, the reason for this is the relief afforded through the laterally-extending slots G, while at the same time the adhesion between the lubricant and the surface of said slots prevents the former from being blown ofi or atomized. I have also found that other constructions, such for instance as shown in Fig. 4-

will accomplish a similar purpose. In this modication, in place of the slotted nozzle, a guide II extends downward below the discharge end of the lubricant passage I and the adhesion of the lubricant to the surface of this guide holds it from being atomized. In the construction shown in Fig. 5 the parallel depending rods J and J are arranged upon opposite sides of the lubricant discharge passage I and perform a similar function.

It is obvious that various modifications may be made, all of which operate upon the same principle and come within the spirit of my invention. However, the construction shown in Figs. 1 to 3 I deem preferable and more satisfactory than the modifications shown.

What I claim as my invention is l. In a lubricator, the combination with a casing containing the sight feed chamber, of a tapered nozzle provided with a bore having a tapered end terminating a substantial distance above the tip thereof, the tip being slitted in an aXial plane and intersecting the Vbore above the tapered end thereof, thereby providing substantially opposed plane surfaces for the adherence of lubricant and lateral relief passages.

2. In a lubricator, the combination with a casing containing the sight feed chamber, of a tapered nozzle having a bore and a tip provided with planar surfaces, said tip being slitted, whereby the lubricant is guided to a point near the center of the planar surfaces by means of the tapered end of the bore. and the extreme upper end of the slit commHnieating with the bore to provide a lateral relief passage for the relief of pressure.

3. In a lubricator, the combination with.

a Casing containing the sight feed Chamber, In testimony whereof I affix my signature of a nozzle Jfor discharging the lubricant in presence of two Witnesses. therein, said nozzle being provided With a CHARLES H CROCKETT lateral relief passage above its discharge end and presenting suflicient surface in adhesive Witnesses:

Contact with the drop to hold the same WM. J. BELKNAP, against fluctuating pressures. JAMES P. BARRY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of, Patents.v Washington, D. C. 

